1. Cardiovascular Research Center (H.S.J., A.H., M.C.H., L.X., J.Y., A.B., E.R., A.W.H., W.J.H., S.C., M.B., E.S., J.A.M., R.W.M., P.T.E.), Massachusetts General Hospital, Boston.
2. Demoulas Center for Cardiac Arrhythmias (A.H., A.B., W.J.H., P.T.E.), Massachusetts General Hospital, Boston.
3. Cardiovascular Disease Initiative, The Broad Institute of MIT and Harvard, Cambridge, MA (M.C.H., J.Y., A.W.H., P.T.E.).
4. University Hospital Munich, Ludwig-Maximilians University (LMU), Department of Medicine I, Campus Grosshadern, Marchioninistrasse 15, D-81377 Munich, Germany (S.C.).
5. German Centre for Cardiovascular Research (DZHK), Partner site: Munich Heart Alliance, Munich, Germany (S.C.).
6. Institute of Surgical Research at the Walter-Brendel-Centre of Experimental Medicine, University Hospital, LMU Munich, Marchioninistrasse 27, D-81377 Munich, Germany (S.C.).
7. Interfaculty Center for Endocrine and Cardiovascular Disease Network Modelling and Clinical Transfer (ICON LMU), LMU Munich, D-81377 Munich, Germany (S.C.), Utica, NY.
8. Masonic Medical Research Institute, Utica, NY (N.R.T.).
9. Department of Human Cell Biology and Genetics, Southern University of Science and Technology School of Medicine, Shenzhen, China (J.-T.D.).
10. Leducq Foundation, Boston, MA (D.J.M.).